Question
On Sunday, six trains (i.e. train 1, train 2 and so on)
are standing on six different platforms respectively from left to right facing North. Next day, all the trains are there on the same six platforms in such a way that no train is on the same platform as on the Sunday. On Monday, following observation are made: (i) Train 2 was immediately to the left of Train 5. (ii) Train 4 has Train 6 to its immediate left and neither of them were at Train 3’s original place. (iii) Train 1 has Train 3 on its immediate right and Train 5 on its immediate left. If an even numbered train is at the East end on Monday, which train is fourth from the right end.Solution
From the given information at (i), (ii) and (iii), there are two possibilities : Possibility I : 6 4 2 5 1 3 Possibility 2 : 2 5 1 3 6 4 But since, in the question, it is said that an even numbered train is at the East end, possibility II is the correct arrangement.
- The number of boys and girls in a college is in the ratio of 6:5. If 12 boys were absent and 18 girls joined, their numbers would be equal. Determine the o...
<p><p>Sides of a parallelogram are in the ratio 6:5. Its area is 2700 sq. units. Altitude on the greater side is 30 units. Altitude ...
P gave out 'a' cookies to Q, R, S, and T. The cookies received by Q and S are in a 4:7 ratio, and those received by R and T are in a 2:3 ratio. If R rec...
- In class ‘X’, the number of girls is 75% of the number of boys. Class ‘Y’ has 15% less boys than class ‘X’ and 30% more total students than cla...
Divide Rs 2,100 among P, Q and R, so that P shall receive 3/7 as much as Q and R together, and QÂ 2/3 of what P and R together receive. Find the share ...
Total population of city P and Q is 2240 and 2650 respectively. If the ratio of number of males to females in city is P and Q is 4:3 and 3:2 respectivel...
The ratio of A's income to savings is 25:9, and B's expenditure is 60% of A's total income. If B's expenditure exceeds its savings by Rs. 3500, and A's ...